Experiencing MIS 9th by m kronenke chapter 06

Chapter 6

The Cloud


“How About $10 Per Terabyte.”
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Lease storage capacity from third party.
All incoming data from drones automatically uploaded.
Average monthly storage costs cut at least 50%.
Power savings, backup time saved, no new hardware
configuration.
• One-time set up and development costs.

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Study Questions
Q1: Why is the cloud the future for most organizations?
Q2: What network technology supports the cloud?
Q3: How does the cloud work?
Q4: How do organizations use the cloud?
Q5: How can Falcon Security use the cloud?
Q6: How can organizations use cloud services securely?
Q7: 2026?

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Q1: Why Is the Cloud the Future for Most
Organizations?
• The Cloud
– Elastic leasing of pooled computer resources via Internet.
– Elastic
 Automatically adjusts for unpredictable demand,
 Limits financial risks.
– Pooled
 Same physical hardware
 Economies of scale

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Example of a Video Banner Ad Customer

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Pooled

• Economies of scale
– Average cost decreases as size of operation increases.
– Major cloud vendors operate enormous data centers (Web
farms).

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• Apple Data
Center in
Maiden, NC
Billion-dollar
facility contains
more than
500,000 sq. ft.

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Why Is the Cloud Preferred to In-House Hosting?

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Why Is the Cloud Preferred to In-House Hosting?
(cont'd)

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Why Now?
1. Cheap processors, essentially free data communication and
storage.
2. Virtualization technology.
3. Internet-based standards enable flexible, standardized
processing capabilities.

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When Does the Cloud Not Make Sense?
• When law or standard industry practice require physical control
or possession of the data.
– Financial institutions legally required to maintain physical
control over its data.

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Ethics Guide: Cloudy Profit?
• Data broker (or data aggregator).
• Acquiring and analyzing market, buyer, and seller data for real
estate agents.
• Alliance transitioned data storage and processing from own
Web farm to the cloud.
• Improved speed and quality of data services at fraction of prior
costs, cut in-house hardware support staff by 65%.
• Plowing money back into R&D.

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Q2: What Network Technology Supports the
Cloud?

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Typical Small
Office/Home
Office
(SOHO) LAN

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LAN Protocol
• IEEE 802.3
• Bluetooth
– Wired LAN
– Transmits data short distances.
– 10/100/1000 Mbps
– Connect computer, keyboard,
– Ethernet
mouse, printer, smartphones,
• IEEE 802.11
smartwatches, automobiles,
– Wireless LAN
sports equipment, clothing.
– 802.11ac
– Speeds up to 1.3 Gbps

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Abbreviations Used for Communications and
Computer Memory Speeds
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Communications equipment,
K(ilo) = 1,000, not 1,024 (as for memory);
M(ega) = 1,000,000, not 1,024 × 1,024;
G(iga) = 1,000,000,000, not 1,024 × 1,024 × 1,024.
– 100 Mbps =100,000,000 bits per second.
• Communications speeds expressed in bits, memory sizes in
bytes.

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Connecting Your LAN to the Internet
Important ISP functions:
1.Provide legitimate Internet address.
2. Provide gateway to Internet.
3.Pay access fees and other charges to telecoms.
• WAN wireless average performance 1 Mbps, with peaks of up
to 3.0 Mbps.
• Typical wireless LAN 50 Mbps.

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Summary of LAN Networks

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Q3: How Does the Cloud Work?
The cloud resides in the Internet

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Carriers and Net Neutrality
• Messages, broken into packets.
• Packets move across Internet, passing through networks owned
by telecom carriers.
• Peering agreements - Carriers freely exchange traffic amongst
themselves without paying access fees.
• Net neutrality principle
– All data treated equally.
– Problem: some people use more bandwidth than others.

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Internet Addressing

• Public IP addresses
– Identifies a unique device on Internet.
– Assigned by ICANN (Internet Corporation for Assigned Names
and Numbers.
• Private IP addresses
– Identifies a device on a private network, usually a LAN.
– Assignment LAN controlled.

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IP Addressing: Major Benefits
1. Public IP addresses conserved
– One public IP address per LAN. 
2. Using private IP addresses
– Eliminates registering public IP address with ICANN­
approved agencies. 
– Protects against direct attack.

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Public IP Addresses and Domain Names
• IPv4
– 165.193.123.253
• Domain name

– Unique name affiliated with a public IP address.
– Dynamic affiliation of domain names with IP addresses.
– Multiple domain names for same IP address.
•URL (Uniform Resource Locator
– Internet address protocol, such as http:// or ftp://.

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Domain Registry Company

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Processing on a Web Server
What happens when
you visit a Web site
and order something,
and pay for it?

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